esquire magazine e-paper circuit-board
esquire magazine e-paper cover October 2008.
xxv has some more info and an oscilloscope image tracing the signal for one of the sections of the display. also see his esquire e-ink web-page.
here's more info from a comment by maushammer about the makezine article Esquire E-Ink cover hacking? - take apart photos and more...:
Pin 1: VDD
Pin 2: GND
Pin 3: VPP
Pin 4: pin 6 (ICSPCLK)
Pin 5: pin 7 (ICSPDAT)
Pin 1: VDD [3 volts]
Pin 2: not used
Pin 3: not used
Pin 4: VPP/MCLR and S1
Pin 5: goes to R5/Q3/R6
Pin 6: goes to R3/Q2/R4
Pin 7: goes to R1/Q1/R2
Pin 8: GND
S1 (the unpopulated switch) is connected to pin 4, which is a reset pin... but it can also be programmed as an input. It acts like a reset, though. [pauses while shorted; resets when released. --just mike]
Battery 6 powers the microcontroller only. (3 volts)
Batteries 1-5 generate 14.86 volts - available at C3
... I wonder which power supply will run out -- battery 6, or batteries 1-5.
Q1-3, R1-6 convert 0-3 volts from the CPU to 0-15 volts for the high-voltage drivers (U2 & U3).
U2 & U3: HEF4094BT - 8 stage shift-and-store bus register
Pin 3 is the clock - 30 Hz - it's slow because the Q1-3 voltage translator is slow.
Pin 2 is the data - varies depending which segments need to be lit
Pin 1 is the strobe - 2.7 Hz - allows all the outputs to switch simultaneously.